That which is enjoined; such as an order, mandate, decree, command, precept
(law) A writ or process, granted by a court of equity, and, in some cases, under statutes, by a court of law, whereby a party is required to do or to refrain from doing certain acts, according to the exigency of the writ.
2012 April 19, Josh Halliday, “Free speech haven or lawless cesspool – can the internet be civilised?”, in the Guardian[1]:
Southwark council, which took out the injunction against Matt, believes YouTube has become the "new playground" for gang members.
Usage notes
The verb associated with this word is enjoin. Injunct is also sometimes used as a synonym.